class_docstr: Tests for DpgLearning.
    
class_docstr_tok: ["Tests","for","DpgLearning","."]
code: def testLossShape(self):
      self.assertEqual(self.loss.shape.as_list(), [self.batch_size])
  
file_path: trfl/trfl/dpg_ops_test.py
imports: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  import numpy
  import tensorflow.compat.v1
  from trfl import dpg_ops
label_desc: Use image node_id 9 for calling the DpgTest obj's underlying member method code with example usage: obj.testLossShape() without return types